[lkml]   [2011]   [Aug]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH 3/8] ext4: Warn if direct reclaim tries to writeback pages
    On Wed, Aug 03, 2011 at 04:00:19PM +0200, Johannes Weiner wrote:
    > > That said, in my current revision of the series, I've dropped these
    > > patches altogether as page migration should be able to trigger the same
    > > warnings but be called from paths that are of less concern for stack
    > > overflows (or at the very least be looked at as a separate series).
    > Doesn't this only apply to btrfs which has no own .migratepage aop for
    > file pages? The others use buffer_migrate_page.
    > But if you dropped them anyway, it does not matter :)

    Note that the mid-term plan is to kill ->writepage as an address space
    method. Besides the usage from reclaim as as callbacks to
    write_cache_pages and write_one_page (which can be made explicit
    arguments) the only remaining user is the above mentioned fallback.

    Josef, any chance you could switch btrfs over to implement a proper

     \ /
      Last update: 2011-08-03 16:21    [W:0.031 / U:20.888 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site